牙病很常见,特别是中老年人更为普遍。而牙痛又是多种牙病都可出现的一个共同症状。因而出现牙痛时人们常就医于牙科。但有些人的牙痛却并非牙病所致,而是其他疾病引起的。如: 冠心病。有些冠心病人发生心绞痛时,心脏症状不明显,而是出现一侧或上下多个牙齿同时疼痛。这种“牙痛”按牙病治疗常常无效,含眼硝酸甘油可很快 Dental disease is very common, especially in the elderly is more common. And toothache is a common symptom that many kinds of dental diseases can appear. Therefore, people often go to the dentist when there is toothache. But some people’s toothache is not caused by dental problems but other diseases. Such as: coronary heart disease. Some patients with coronary heart disease angina pectoris, the heart symptoms are not obvious, but appear on one side or up and down multiple teeth at the same time pain. This “toothache ” according to the treatment of dental often ineffective, eye drops containing glycerol can be very fast